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target-alpha: Inline hw_ret

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Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2014-09-16 12:55:12 -07:00
parent 2f458b7c31
commit 6c05d3ded7
3 changed files with 10 additions and 15 deletions
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2
target-alpha/helper.h
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@ -91,8 +91,6 @@ DEF_HELPER_FLAGS_2(ieee_input_cmp, TCG_CALL_NO_WG, void, env, i64)
DEF_HELPER_FLAGS_2(ieee_input_s, TCG_CALL_NO_WG, void, env, i64)
#if !defined (CONFIG_USER_ONLY)
DEF_HELPER_2(hw_ret, void, env, i64)
DEF_HELPER_2(ldl_phys, i64, env, i64)
DEF_HELPER_2(ldq_phys, i64, env, i64)
DEF_HELPER_2(ldl_l_phys, i64, env, i64)

8
target-alpha/sys_helper.c
View File

@ -40,14 +40,6 @@ uint64_t helper_load_pcc(CPUAlphaState *env)
/* PALcode support special instructions */
#ifndef CONFIG_USER_ONLY
void helper_hw_ret(CPUAlphaState *env, uint64_t a)
{
env->pc = a & ~3;
env->intr_flag = 0;
env->lock_addr = -1;
env->pal_mode = a & 1;
}
void helper_tbia(CPUAlphaState *env)
{
tlb_flush(CPU(alpha_env_get_cpu(env)), 1);

15
target-alpha/translate.c
View File

@ -2635,13 +2635,18 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
/* Pre-EV6 CPUs interpreted this as HW_REI, loading the return
address from EXC_ADDR. This turns out to be useful for our
emulation PALcode, so continue to accept it. */
tmp = tcg_temp_new();
tcg_gen_ld_i64(tmp, cpu_env, offsetof(CPUAlphaState, exc_addr));
gen_helper_hw_ret(cpu_env, tmp);
tcg_temp_free(tmp);
ctx->lit = vb = tcg_temp_new();
tcg_gen_ld_i64(vb, cpu_env, offsetof(CPUAlphaState, exc_addr));
} else {
gen_helper_hw_ret(cpu_env, load_gpr(ctx, rb));
vb = load_gpr(ctx, rb);
}
tmp = tcg_temp_new();
tcg_gen_movi_i64(tmp, 0);
tcg_gen_st8_i64(tmp, cpu_env, offsetof(CPUAlphaState, intr_flag));
tcg_gen_movi_i64(cpu_lock_addr, -1);
tcg_gen_andi_i64(tmp, vb, 1);
tcg_gen_st8_i64(tmp, cpu_env, offsetof(CPUAlphaState, pal_mode));
tcg_gen_andi_i64(cpu_pc, vb, ~3);
ret = EXIT_PC_UPDATED;
break;
#else